Stock quotation projecting machine



J. W. DECKER STOCK QUOTATION PROJEC'IING MACHINE Original Filed May 25,1928 ATTORNEY ENTo Dec E UH" LE: I

Patented May 21, 1935 STOCK QUOTATION PROJECTING MACHINE James W.Decker, New York, N. Y,

' Application May 23, 1928, Serial No. 280,099

Renewed June 7, 1933 6 Claims.

This invention relates to stock quotation proecting machines in general,and more especially to devices for controlling the mov tape.

Among the objects of the present invention, it is aimed to provide adevice for effecting the smooth and even passage of the tape through theprojecting mechanism of a stock quotation projecting machine and also toeffect smoothly spreading out the portion of the tape being projected aswell as the slow starting and stopping of the tape, all to the commonend of projecting on a screen a picture of the quotations beingprojected, which picture can be observed by the average trader for anextended period of time without danger of eye strainor discomfort.

To this end the present invention aims specifically to provide a tapecontrolling device consisting of a device for advancing the tape intothe projecting position and a device for receiving the tape after beingprojected and drawing the tape therefrom, which device operates at aslightly faster rate of speed than the advancing device.

These and other features, capabilities and advantages of the inventionwill appear from the subjoined detail description of one specificembodiment thereof illustrated in the accompanying drawing in whichFigure 1 is a fragmental front elevation of a stock quotation projectingmachine made according to the present invention; and

Fig. 2 is a fragmental end elevation of the same.

In the embodiment illustrated there is provided 5 a main frame having anupper platform I and a lower platform 2. On the upper platform I thereis mounted a support 3 on which is mounted the ticker generallydesignated by the reference character T, having a printing mechanism andan ejecting mechanism of the standard type such as used in certaintickers. To oneside of the support 3 there is provided the lamp housingI in which is mounted the lamp 5. The rays of the lamp 5 are received bythe lens 6 in the lamp 5 housing from which they are projected onto thereflector I from there upward through the light aperture disposed abovethe reflector 1 onto the tape a and through the projecting lens formedin the housing 8 supported by the bracket 9 on the top of the lamphousing 4. From the projecting lens in the housing 8 the images of theprinted matter on the tape are projected onto the reflector ill in thescreen housing II supported by brackets l2 suitably secured to anadjacent partition or wall member l3. From the reflec ement of the torIII the images are projected onto the screen ll.

The tape 'a, see Fig. l, is ejected by the ticker T, and receivedbetween the idler I and advancing roller l6. From there the tape passesacross the light aperture or projecting position of the projectingmechanism over to and between the idler l1 and tape drawing roller l8.From there the tape a passes down to a suitable receptacle or rewindmechanism as desired.

Among the features of the present invention is the cooperation of therollers l6 and I8 with the tape a. The roller I8 is slightly larger thanthe roller l6, and consequently, if driven at the same rate of speed,will transmit to the tape a a speed faster than the speed transmitted tothe tape a by the roller [5 or rather will exercise a tension on thetape a always sufilcient to maintain the same taut and free from loops,sags, wrinkles, and the like. Preferably the tension of the idler l5relative to the roller I6 is such that the idler l5 and roller l6 effecta positive feeding action or positive drawing action on the tape asdistinguished from a slipping action. On the other hand the tension ofthe idler ll relative to the roller I8 is such that slight slippage mayoccur, thereby being effective to protect the tape a against injury andat the same tinie due to the faster speed transmitted by it to the tapea than the speed transmitted to the tape a by the roller I6, beingeffective to exercise sufficient tension on the tape a to maintain thesame taut at all times both when the feed starts, continues in itsregular movement or when it stops, whereby the tape a will at all timesbe maintained free of loops, sags, wrinkles, or the like. In order tocause the roller I8 to operate at the same rate of speed as the rollerHi, the roller l6 has secured thereto a bevel gear 24 similar indimension tothe bevel gear 25 secured to the roller Ill. The bevel gear24 meshes with the bevel gear 25 on one end of the shaft 21 supported inthe brackets 28 and 29 secured to the lamp housing 4. The bevel gear 25meshes with the bevel gear 30 at the other end of the shaft 21.

In the space formed between the ticker T and roller Hi, the finger 3| ofthe switch mechanism now to be described rests on the tape a. The finger3| is suitably connected to the upper end of a link 32 or the likewhichis pivotally connected at. its lower end to the bracket 33 of amercury switch 34, which bracket 33 is pivotally connected to theabutment 35 secured on the platform 2. The mercury switch 34 isconnected by the conductor 35 with the motor 31 and by the conductor 38with the outlet plug 39. The outlet plug 39 is connected by theconductor 40 with the motor 31.

The motor 31 is mounted on the platform 2 and has fixed to its shaft 4|the worm wheel 42 which meshes with the worm 43 of the shaft 44 which isjournaled in the bearings 45 and 46, and has fixed at its upper end thebevel gear 41. in mesh with the bevel gear 30.

From the foregoing it will be seen that as the ticker T starts tooperate and eject the tape, a loop 48 will initially be formed to permitthe finger 3| in engagement therewith to descend and rock the bracket 33to cause the switch 34 to make contact, whereupon the motor will be ac--tuated to gradually pick up speed and in turn to actuate the shaft 44,and therewith the shaft 21 and associated bevel gears 26 and 30.Thereupon the rollers l6 and I8 being actuated and the roller I 8tending to transmit a faster rate of speed to the tape a than the speedtransmitted to the tape by the roller l 6, the tape a in the projectingmechanism and adjacent to the shaft 21 will be maintained taut and atthe same time continue to maintain the loop 48 so long as the ticker Tis operating. As soon as the ticker T comes to rest, the motor 31 willcontinue to operate until the loop 48 has been sufficiently dissipatedto raise the finger 3i and in turn to actuate the bracket 33 and breakthe contact, whereupon the motor will gradually come to rest and causethe rollers I6 and I8 likewise to come to rest.

It is obvious that various changes and modifications may be made to thedetails of construction without departing from the general spirit of theinvention as set forth in the appended claims.

I claim:

1. The combination with a ticker tape, of a tape controlling device forcontrolling the tape as it passes across the light aperture of aprojecting mechanism in which the tape is fed to the light aperture byan intermittent vibration transmitting movement, said tape controllingdevice consisting of two pairs of rollers for gripping said tape, onepair at the supply end of the light aperture and the other pair at thedischarge end of the light aperture, said other pair exercising atension on the portion of the tape located at the light aperture, andmeans for actuating said rollers.

2. The combination with a ticker tape, of a tape controlling device forcontrolling the movement of the tape as it passes across the lightaperture of a projecting mechanism, said tape controlling deviceconsisting of a tape advancing roller for advancing the tape to thelight aperture and a tape drawing roller for drawing the tape across thelight aperture, said advancing roller transmitting a slower rate ofspeed to the tape than the rate of speed transmitted to the tape by saiddrawing roller thereby to exercise a tension on the portion of the tapelocated at the light aperture and to maintain the tape taut at the lightap- :ture, and means for actuating said rollers.

3. The combination with a ticker tape, of a tape controlling device forcontrolling the tape at the light aperture of a projecting mechanism inwhich the tape is fed to the light aperture by an intermittent vibrationtransmitting movement, said controlling device consisting of a tapeadvancing roller disposed at the entrance end of the light aperture, anda tape drawing roller disposed at the discharge end of the lightaperture, and means for operating said tape drawing roller to transmit afaster'rate of speed to the tape than the rate of speed transmitted tothe tape by said tape advancing roller thereby to exercise a tension onthe portion of the tape located at the light aperture and thus maintainsuch portion smooth.

4. The combination with a ticker tape, of a tape controlling device forcontrolling the tape at the light aperture of a projecting mechanism,said controlling device consisting of a tape advancing roller disposedat the entrance and of the light aperture and a tape drawing rollerdisposed at the discharge end of the light aperture, said tape drawingroller having a greater diameter than said tape advancing roller, amotor, means for operatively connecting said motor to actuate saidrollers whereby said advancing roller will retard the movement of thetape as it passes to the light aperture relative to the movementtransmitted thereto by the drawing roller and relative to the speed atwhich the tape is fed to the advancing roller to form a vibrationdissipating loop in advance of said advancing roller, an electric switchfor said motor, and a device cooperating with said loop to control saidswitch.

5. The combination with a ticker tape, of a tape controlling device forcontrolling the tape at the light aperture of a projecting mechanism,

said controlling device consisting of a tape advancing roller disposedat the entrance end of the light aperture and a tape drawing rollerdisposed at the discharge end of the light aperture, said tape drawingroller having a greater diameter than said tape advancing roller, amotor, means for operatively connecting said motor to said rollers toactuate said rollers at the same rate of angular speed whereby saidadvancing roller will tend to retard the movement of the tape relativeto the movement transmitted thereat the light aperture of a projectingmechanism, a.

said controlling device consisting of a tape advancing roller disposedat the entrance end of the light aperture and a tape drawing rollerdisposed at the exit end of the light aperture, said tape drawing rollerhaving a greater diameter than said tape advancing roller, means foractuating said tape advancing roller and said tape drawing roller torotate at the same rate of angu lar speed, and means for impinging saidtape into engagement with said tape advancing roller and said tapedrawing roller whereby said tape will be maintained taut at the lightaperture at all times.

JAlVIES W. DECKER.

